Evolving a bigger brain with human DNA

The human version of a DNA sequence, called HARE5, turns on a gene important for brain development (the gene activity is stained blue in this image) and causes a mouse embryo to grow a 12 percent larger brain by the end of pregnancy than an embryo injected with the chimpanzee version of ...This is an NSF Multimedia Gallery item.
Source: NSF Multimedia Gallery - Category: Science Source Type: video